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Finding the Fourth Proportional to 63,576.89, 87,642.43 and 48,443.30

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Solution

The fourth proportional to 63,576.89, 87,642.43 and 48,443.30 is: 66,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,576.89 : 87,642.43 = 48,443.30 : x
  2. Step 2: Convert to fraction form
    63,576.89/87,642.43 = 48,443.30/x
  3. Step 3: Cross multiply
    63,576.89x = 87,642.43 × 48,443.30
  4. Step 4: Simplify right side
    63,576.89x = 4,245,688,804.55
  5. Step 5: Solve for x
    x = 4,245,688,804.55/63,576.89
  6. Step 6: Final answer
    x = 66,780.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.